Well you can just... look them up. Some of these were new to me (e.g. firearm ballistics). But when it comes to stuff like the unreliability of drug tests or bite mark forensics, it's not at all a secret. Any recently published meta analysis would suffice. In fact I'd be shocked if you could find any in support of these methods.

Why put the onus of the work to quote a bunch of articles on the OP when these are all very easily verifiable with a tiny bit of effort